Enables gamma-aminobutyric acid transmembrane transporter activity; taurine binding activity; and taurine:sodium symporter activity. Involved in gamma-aminobutyric acid import; import across plasma membrane; and taurine transport. Located in dendrite; neuronal cell body; and plasma membrane. Part of plasma membrane protein complex. Orthologous to human SLC6A6 (solute carrier family 6 member 6). [provided by Alliance of Genome Resources, Apr 2022]